Topstar Sitness 40 office chair, red, Body-Balance-Tec joint

This ergonomic office chair with Body-Balance-Tec keeps you active while working and supports your natural movements.⁠‌‌‌‍‌‍‌‌‍‌‌‍‍‍‌‍‌‌‌‌‌‍‍‍‍‍‍‍‍‌‌‌‍‌‌‌‍‌‍‌⁠ The adjustable height and backrest ensure optimal seating comfort, even during long working days.⁠‌‌‌‍‌‍‌‌‍‌‌‍‍‍‌‍‌‌‌‌‌‍‍‍‍‍‍‍‍‌‌‌‍‌‌‌‍‌‍‌⁠

What does this product do?
The Sitness 40 is an ergonomic office chair designed specifically for active sitting. Thanks to the Body-Balance-Tec joint, the seat moves along with your body, which promotes better blood circulation and stronger back muscles. Choose this chair if you have long working days and want to prevent back complaints by sitting dynamically.

Why this size suits your workspace
With seat dimensions of 440 x 400 mm and a seat height adjustable between 430 and 510 mm, this chair suits most desks and body heights. The backrest is adjustable in both height (200-300 mm) and depth, so you can always find the right support for your back. The steel base provides stable support for users up to 110 kg.

The Body-Balance-Tec joint in practice
This special joint sets the Sitness 40 apart from ordinary office chairs. It allows the seat to tilt slightly and move with your body's movements. This keeps your muscles active and your body in motion, even while you are seated. The 100% polyester upholstery is durable and easy to keep clean.

Practical considerations
For hard floors such as laminate or parquet, you can order optional hard floor castors (article number 70699950). These protect your floor from scratches and roll more softly than the standard castors. Make sure your desk is at the right height for this chair's seat height adjustment, so that your arms can rest on the keyboard at a natural angle.